Screw lock for eyeglasses and the like



July 13, 1948. F; A. v. GRAVINESE ETAL 2,445,172

SCREW LOOK FOR EYEGLASSES AND-THE LIKE 2 Sheets-Sheet 1 Filed Dec. 5. 1946 lNVE NTORS fizz/JR. VGmvZ/Yae Ignatius 6. FZzz'ZZa.

ATTORNEY y 13, 1948- F. A. v. GRAVINESE ETAL- ,445,172

SCREW LOOK FOR EYEGLASSES AND THE LIKE Filed Dec. s, 1946 2 Sheets-Sheet 2 9 /89 7' v 86 97 I: A V

IN VEN TORS Patented July 13, 1948 UNITED S TAT ES PAT ENT O FFICE 2,445,172 SCREW LOCK FOR EY GLASSES AND THE LIKE Frank A. V. 'G'ravinese, Bronx, and Ignatius G. Failla, Elmhurst, Long lsland N. Y. Suhstituted for abandoned application SerialN'o} 499,052, August 18, 1943. This application December 3, 1946, Serial No. 713,760 l 3 Claims. 1

This invention'relates to new and-useful improvements" in lock means" for screwsfor' eye-'- glassesand other" uses.

This is a substitute for our abandoned applicationffiled o n August" 18,"-l943,"Serial Number The invention *hasfor an object to construct a screw lock which is pa'rticularly'adapted to hold portions of the frameso-f "eyeglasses in position" in a manner so as not to become loose. Hereto fore screws used'in eyeglassesihave often worked loose.

This necessitates taking the spectacles back 'to an 'optician to havethescrews retightened andofte'n to have the lenseswremounted and re aligned."

This invention is broad'in its aspects and'is intended to include other articles than" eyelasses.

Furthermore, the" lock means forscre'ws mayb-eused efi'ectivel'y in a large varietyof sizes I and "screws of various shapes.

Particular forms of the invention willb'e given" by wayo'f illustration," but it should be'borne in mind'that itis readily possible for persons'skilled in the artto conceive any number 'of variations thereof;

Foriurthercomprehension of the invention, and of the objects and advantages thereof; reference willbe' had to thefollowing'description and accompanyingdrawings, and'to the ap pended claims in which thevarious' novel -fea' tures of the invention are more particularly'set forth.

In the accompanying drawings "forming" a ma-- terial part of this disclosure:

Figllis an 'elevation'al" View of a pair of eye glasses with lock means for screws" acco'r'dingto' this invention.

Fig." 2' is' a fragmentary enlarged 'section'a'l' vi'ew' 3 is a"fragmen'tary"sectional View taken "on the'line 3 -3 of Fig. 2.

Fig.1 is a fragmentary: vertical sectional view similar to Fig. 2 but illustrating another'forin of the invention.

Fig. 5' is "a horizontalsectional"view taken on' Fig. 'Z'is'a" horizorital"sectional-View"taken on med as-1+1 01 Fi 6. 1

Fig: 8 is anal-tieranimal"steamer viewsun:

cations" r Fig? 11118 9 9 of Fig." 8;

l i'secnenar'viewiaken on the Fig-10 is anotherfvertical sectional -view. siniilar to Fig.2 illustrating a further embodiment of the invention.

Fig.11 is a bottom elevationalviewlooking in the directionof the line H- H of Fig- 10 Fig. 12 is another sectional view similar to Fig.

but illustrating"anothermodification. V Fig. 13 is afragmentarvbottom' viewlooking in the'direc'tionoi the'line l3-'l3 of Fig.';l2.;-

Fig. 14 is another sectionalview similar 'to Fig.

but illustrating 'anothenmodification;

Fig. 15 is a horizontalsectional view--on the line I5-!5,0fFig.1'-." v. Fig. 1.6 is another sectional view simil'ar to' Fig: 2'hut illustrating another 'modification.--=- j Fig. 1'? is a bottomelevational view looking the direction of the line I'l-l'l of Fig. 16.

Fig. 18 is 'anothergsectionalview similar-rto* Fig. 2 but illustrating another modiiication':v

line. I 9! 9 of '18.

Fig; 20 is another sectional 2 out illustrating anothenmodification. Fig. 21 is another sectional view similarto 2 but illustratinganoth'ermodificatiom:

Fig. 22 is another sectional view similar 'to Fig* 2 but illustrating another modification of the'" invention. Fig. 23 is a verticalsectionalview' of a portion of a pair of eyeglasses illustrating a method-of;

attaching-a temple to the side thereofyandmf securing the eye wire in position."

Fig; 24 is anrelevat'ional' view-oi a screw constru'cted in aceord'anc'ewith amodification'ofthe invention.

Fig. 25 is asectio-n'al view ofthe top portier'iw' The lock means for screws for eyeglassesk-ac cording to this invention 'is' used in'sconiunction with a pair of"glasses havingilensesel0 and a frame consisting of a nose-piece 1 I an'd ear'w. brackets I 2. Screws I3 engage through portions 1' of the'irameahdthroughfthelenses forholdin the-parts as a unit. Each screw l3 has a heat portion was shank portion 1 3", and a" threaded Fig. 19 is a vertical sectionalview-takenon-the view similar to T portion HP. The lens I!) engages between laminated elements or ears l4 of the frame. The screw 13 engages through aligned apertures in the laminated elements and in the lens 18.

In the form of the invention illustrated in Figs. 1 to 3 a cap nut i5 threadediy engages upon the threaded end of the screw and serves to hold the screw in position. The cap nut portion is formed with an interior slot I8. The end of the screw l3 is formed with a slot IT. The cap nut or the screw or both, is already charged with fusible material [8 in the respective slots. After the cap nut has been engaged on the screw. heat is applied to produce a fused mass is which en-' gages the grooves l8 and I! for locking the nut and screw together as a unit.

In the form of the invention illustrated in Figs. 4 and 5 a screw 28 engages through laminated portions 2| and has a head 22 at one end and a threaded shank at the other end. A nut 23 threadedly engages the threads of the shank. The shank is also formed with a helical groove 24. Within this groove fusible material 25 is placed, such as lead, and after the screw and nut have been engaged with each other, heat is applied to fuse the material 25, and when hardened serves to lock the parts in fixed positions.

In Figs. 6 and '7 another form of the invention is disclosed in which there are laminated elements 26 through which a screw 21 engages. This screw has a head 28 disposed against the outer face of one of the laminated elements and a threaded shank 29. A slot is formed into the free end and fusible material 30 is engaged in this slot and fused together with the adjacent portions of the assembly to lock the screw in position.

In Figs. 8 and 9 another form of the invention is illustrated in which a screw 3| engages through laminated elements 32. This screw has a head 33 at one end and at its other end is provided with a threaded shank 31. A cap nut 35 threadedly engages the outer end of the screw. The shank of the screw is formed with a slot 35 in which fusible material 37 is engaged. This fusible material ma also be placed in the nut cap 35. Heat is applied to fuse the parts together as a unit. This looks the screws in position.

In Figs. and 11 another form of the invention is illustrated in which a screw 38 is engaged through laminated elements 39. This screw has a head 40 at one end and a threaded shank il at the other end. A nut 42 threadedly engages upon the shank. This nut is formed with a recess 43 in which fusible material 44 is engaged. This fusible material is fused together with the lower portion of the shank for locking the screw in position.

In Figs. 12 and 13 another form of the invention is disclosed in which there is a screw 45 engaging through laminated elements 46. This screw has a head 41 and a threaded shank portion 48. A nut 49 is threadedly engaged on the screw. The nut has an annular recessed area 55 in which fusible material 5! is engaged. This fusible material is fused together with the adjacent portions of the assembly, to lock the nut and screw together.

In Figs. 14 and another form of the invention is shown in which a screw 52 is engaged through laminated elements 53. This screw has a head 54' at one end and a threaded shank 55 at the other end. A nut 56 engages the threaded shank. Longitudinally of the shank and on diametrically opposite sides the shank is formed 4 with recessed areas 51 in which fusible material 58 is engaged. This fusible material is fused together with the adjacent portions of the assembly for locking the parts together.

In Figs. 16 and 17 another form of the invention is disclosed in which there is a screw 59 engaged through laminated elements 60. This screw has a head 6| at one end and a threaded shank 62 at the other end. A nut 83 threadedly engages the shank. This nut is extra thick so that there is an unused area in the threaded opening thereof. Within this area fusible material 64 is placed and is fused together with the adjacent material of the nut and screw for holding the parts together. This nut 53 is shown with com caved side edges 53 and other flat sides 53 merely by way of design. Other shapes and designs of nuts may be used.

In Figs. 18 and 19 a still further modified form of the invention is disclosed in which there is a screw 65 engaged through aligned openings in laminations 66. This screw has a head 81 at one end and a threaded shank 88 at the other end. The shank is formed with several openings 89 extending diametrically thereof. These openings can be made at various angles and are filled with fusible material 10 which becomes fused with the adjacent material when heat is applied for locking the screw in position.

In Fig. 20 a screw ll is shown engaged through aligned apertures in laminated elements 12. This screw has a head 13 and a threaded shank 14. A nut 15 threadedly engages the shank. Fusible material 16 such as a washer of fusible material is interposed between the nut and an adjacent face of the laminated elements. Heat is applied to fuse the material 16 with the adjacent parts to lock the screw in position.

In Fig. 21 another form of the invention is shown in which there is a screw 11 engaged through aligned openings in laminated elements 18. This screw has a head 19 at one end and a threaded shank at the other end. A cap nut 8i engages a threaded portion of the shank. A washer of fusible material 82 is disposed between the nut and the adjacent face of one of the laminated elements. Heat is applied to fuse the fusible material so as to lock the screw in position.

In Fig. 22 another form of the invention has been shown in which there is a screw 85 engaged through aligned openings in laminated elements 85. The screw 85 consists of a female section 81 and a male section 88 threadedly engaging each other with each section being formed with a head 89 at its outer end. A piece of fusible material 98 is mounted on the base of the female section 81 adjacent the inner end of the male section 88. Heat is applied to fuse the material 90 to lock the sections 81 and 88 of the screw 85 in position.

The heads of the male and female sections may be countersunk as shown in 88 of the female section or not countersunk as shown in 89 of the male section.

The shank of the female section is made in length not to exceed the combined thickness of the several laminated elements when assembled, so that it will not protrude beyond the aperture in the laminated element farthest from its head. If its length is such as not to permit it to be engaged entirely through the aperture in the laminated section farthest from its head the effectiveness of the locking means will not be impaired. It is therefore possible to use a female section of certain specified length not only in assemblies where it can be fully engaged to be flush or anchoring of fusible material to provide the holding or looking action. None of them utilizes the normal holding action of threaded engagement. If the holding action of the fusible material should fail, the entire assembly can loosen or come apart.

It is believed that applicants invention of a threaded male-female assembly combined with the adhering force of solder is novel. This invention combines the adhering action of fusible material and the holding action of the male and female members threadedly engaging each other and the holding action of the female member threadedly engaging one of the laminated elements.

It is also believed that applicants invention is novel and that it is the only male-female assembly yet presented whereby the laminated elements are brought to the exact desired operational tension, which is of vital importance in spectacle assembly by means of threaded engagement rather than clamping.

It is also believed that applicants invention is novel in that it is the only male-female assembly yet presented whereby it can be used, if need be, without fusing the solder if for instance, the electric heating machine which provides the source of heat is out of order, or if it is desired that the spectacles be worn for a short period of time to test their operational effectiveness without its being necessary, for such short period of time, to use the locking means provided by fusing the solder.

In Fig. 23 an eyeglass 95 is illustrated in position in a frame 96 having a pair of adjacent laminated elements 91. A screw 98 connects the laminated elements 91 together for drawing the frame 96 in position about the eyeglass 95.

A temple 59 is inserted in position between the ends of the laminated elements 91 and is retained in position by screw I as to be capable of pivoting relative to the laminated elements 91.

The screws 98 and I00 each have a groove IOI inserted inwards from their bottom ends in which fusible material I02 is mounted. When this fusible material I02 is melted it will contact the adjacent portions of the assembly to securely lock the screws 98 and I00 in position.

In Figs. 24 and 25 a screw I05 is illustrated which has a head I06 which is adapted to be counter-sunk. This head is formed with a groove I 0'! which completely encircles the head I06. Fusible material is mounted in this groove to be melted to contact the surface of the material into which the head is counter-sunk for locking the screw I05 in position.

In Figs. 26 and 27 the head I06 of the screw I05 is formed with recesses I01 in its diametrically opposite sides in which the fusible material I08 is located. In other respects this form of the invention is similar to that shown in Figs. 24 and 25.

In Figs. 28 and 29 another form of the invention is disclosed in which there are laminated elements IIO through which a screw III engages. The screw has a head IIZ counter-sunk into the outer face of one of the laminated elements H0 and a threaded shank portion H2 engaging the other laminated element I I0.

A recess H3 is extended inwards from one end of the screw I I I and is formed with a plurality of laterally extending branch holes II 4 extending to the sides of the screw. The recess I I3 and the branch holes II4 are charged with fusible material II 5. The fusible material H5 is adapted to be melted to contact the adjacent portions of the assembly for locking the screw III in position.

It is to be understood that the recess II3. may be varied in size and shape and the branch holes I I4 may be distributed in various positions about the circumference of the screw shank and may be varied in size or shape.

It is to be understood that the portions of the screw and nuts may be tinned as desired, and that the fusible material may be applied thereto at the time the parts of the lock means are manufactured or when the lock means is being used to connect together the parts of a pair of spectacles as described.

While we have illustrated and described the preferred embodiments of our invention, it is to be understood that we do not limit ourselves to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described our invention, what we claim as new, and desire to secure by United States Letters Patent is:

1. A device of the class described having a screw upon the end of which a cap nut is engageable, fusible material in said cap nut between the inner end of said screw and the base wall of said cap nut, and means in the adjacent end of said screw and base wall of said cap nut engageable by the fusible material for locking the cap nut and screw together as a unit.

A device of the class described having a. screw upon the end of which a cap nut is engageable, fusible material in said cap nut between the inner end of said screw and the base wall of said cap nut, and means in the adjacent end of said screw and base wall of said cap nut engageable by the fusible material for locking the cap nut and screw together as a unit, comprising slots formed in the end of said screw and th base wall of said cap nut into which the fusible material will enter when softened to connect the nut and screw together when the fusible material again hardens.

3. A lock means for eyeglasses and other uses, comprising several laminated elements of an eyeglass or other object, a screw engaging through aligned apertures in said laminated elements, said screw being formed in two sections comprising a male-female assembly, said male section engaging threadedly into said female section, and fusible material disposed frictionally in inner base of said female section.

FRANK A. V. GRAVINESE. IGNATIUS G. FAILLA. 

